Service of process shall be made by delivering and leaving with the Commissioner, or to some person in apparent charge of his office, 2 copies thereof and the payment to him of such fees as may be prescribed by law. The Commissioner shall forthwith mail by registered mail one of the copies of such process to the defendant at his last known principal place of business and shall keep a record of all processes so served upon him. Such service of process is sufficient provided notice of such service and a copy of the process are sent within 10 days thereafter by registered mail by plaintiffs attorney to the defendant at his last known principal place of business, and the defendant’s receipt, or receipt issued by the post office with which the letter is registered, showing the name of the sender at the letter and the name and address of the person to whom the letter is addressed, and the affidavit of the plaintiffs attorney showing a compliance herewith, are filed with the clerk of the High Court where such action is pending on or before the date the defendant is required to appear, or within such further time as the court may allow. However, no plaintiff or complainant shall be entitled to a judgment by default, or a judgment with leave to prove damages, or a judgment pro confessor under 29.0407 through 29.0410 until the expiration of 30 days from date of the filing of the affidavit of compliance.